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(N0 Model.) 2 Sheets-Sheet 1. .J. H. PIBROE & W. B. SANDFORD.

SKELP BENDING MAGHINE. N0. 353,808. Patented'Deo. 7, 1886.

N. PETERS. Fholo lilhag\upher Wnhmglon, n. c.

(N0 Modei.) 2 Sheets-heet 2. J. H. PIEROE & W. B. SANDFORD. SKELPBENDING MAUHINE Patented Den. 7, 1886.

UNITED STATES PATENT OFFICE.

JOHN H. PIEROE AND WILLIAM B. SANDFORD, BOTH OF KEWNEE, ILL., ASSIGNORST TEE HAXTUN STEAM HEATER COMPANY, OF SAME PLAGE.

SKELP-BENDING MACHINE.

SPECIPICATION' forming part cf Letters Patent N0. 353,808, datedDecember 7, 1886.

Applipation filed August 6, 1886. Seria1 N0. 210,240. (N0 model.) 7

.'Z'0 all wh0m it may concern:

Be it; known tha we, JOHN H. PIEROE and WILLIAM B. SANDFORD, citizens ofEhe Uuited States, residing ab Kewanee, in bhe conty of v Henry andStehe of lllinois, have invenned a new and useful Improvement; in Skelp-Bending Machines, of which the following is a full desoription,reference being had to the accompanying drawings, in which Figure 1 is2m p1a11. Fig. 2 is a front e1evat1on. F1g. 3 is a side elevation. Fig.4 is a cross-section ab 1ine x of Fig. l. Fig. 5 is a.

detail, being a side elevation of the central guide.

The primary objeet of our invention is to provide a machine by the useof which skelp can be bellt as the p1ates 0r sheets eome from the rolls0f a rollingnrill without reheating; and the 1eading features of ourinvention cousist in providing a. machine with a series of rollersarranged in pairs, as shown and described, for the purpose offaeilitating the bending of ske1p, e'ach pair of ro1lers differing inforn1 from the others; in providing a central guide arranged bebween thesevera1 pairs ofrollers, and adapted to coacl: with the rollers inbending the skelp; in providing a weighted roher 130 aid in holding theskelp in posibion while 113 1's being bent; in providing improveddevices for eausing the tongs to grip automatically and hold the skelpWhile being drawn through the maehine, and in eertain combinations, all215 illustrated in the drawings, and hereinafter described.

These parts which we c1aim as new will be pointed out in the elaims.

In the drawings, A represents the bed of the maohine.

B B are two p1ates which rest upon the bed A. These p1ates B, as shown,have ribs 011 their under sides. They are so eonstructed am]. placed inposition that they can be moved awa.y from each other a litble.

As shown in the drawings, a a are b1ocks upon each side of the machine,and O are sorews which enter screw-threaded projections b upon the bedA. By means of these screws the p1ates B B can be firmly held together,and by loosening the screws the plates B B and the rollers supportedthereon can be moved away from each other a liotle.

c c are two rollers'the form of whichis shown in Fig. 3. These tworollers are pivoted upon posts whiohnre seoured, one in each of thep1ates B. d d are anobher pair 0f rollers; e e, a third pair 0f rollers;ff, a fourbh pair of rol1ers;, g g, a fifbh pair of rollers, euch pairdiffering fron1 every other pair in form, and bhe form 0f eaoh pairbeing clearly shown in Ehe drawings.

h, Fig. 3, represents 0ne of the posts which Carries one 0f the rollers.Upon the top of each posb there is a washer, und apin passes Ish roughthe washer and ehe post to firmly hold the roller in place. As shown inFig. 3, t;he posb h has a slight; enlargement hear its lower end, andthe roller is formed 110 oorrespond, thus furnishing a better bearingnear the lower end of the roller.

D is a central guide resting upon bhe plates B B, between the severalpairs 0f rollers. In is secured in place by means of bolts z. Theopposite vertical sides of this guide are formed, as indicated by dottedlines in Fig. 1 and by the shading in Fig. 5, for bhe purposeof1essening the friction of the skelp as it; passes through the machine,and the upper edges of this guide D are cut awuy more 0r less tocorrespond with t;he form ot' the several pairs 0f rollers. This guideand Ehe rollers are located relative1y to eaoh other, so that there 1'ssufiicient spaoe between them to permit; the easy passage of Ehe ske] p.The forward end of this guide D is provided With arms, in which a.roher, j, is pivoted. These arms und the roller extend downward alittleinto zu slot; provided in the p1ates B, and the roher has a deep groovein its periphery, und there is a corresponding deep central .groove, k,extending the whole length of the guide D, to permit the passage of thetongs. Ab the front of the machine there is 2m guide-piece, E, formingan open 1nouth, into which the forward end of bhe skelp which is to bebent is first1 p1aced. This guide E is madein two parts, each of whichis seoured t0 0ne of the plates B.

F is a chain, driven by a whee], G, as usnal.

H represents apair of tongs. The upper half, l, is provided With ahandle, m, ab be rear end. The outer end 0f Ehe lower half, n, isgrooved, as shown in Fig. 6, to receive the end of the upper half.

IOO

p is an arm 01 1ever pivoted t0 the upper half, Z, of the hongs. Thelower end of this arm is slightly benb, and extends oub so that it canenter bhe open links of the ehain F.

q is a pin 011 he lower half, n, of the tongs. 'Ihe action 0f the chainup0n t;he arm p and its contact with the pin grip the ske1p.

I is a skelp, which, as shown, has been parbly drawn throngh themachine.

J J are two posts secured 130 the plates B, one on each side of themachine. K is a rod pivoted in the upper ends of the posts J.

L is a 1ever, tw0 parts of which, as shown, stand ab about righta ang1es110 each other.

r 1's a roller carried by tbe lever L. s is a weight 0n the outer and 0fthis 1ever.

The operation is as follows: The forward end 0f the skelp to be benb ist0 be inserted in the mouh 01 guide E, the tongs having been firstopened by band and carried forward far enough to grasp the ske1p. Thetongs ab this time will be in Ehe groove 70 in the guide D. The wheel Gis 130 be driven in any suitable manner, and the movemenu of the ohainWill cause the tongs t0 grip the skelp through the action of th e arm p,as before describe'd, and, t-he ehain continuing t0 move, the skelp willbe gradually drawn through themaehine, and will be.gradnally benl: toproper shape, it: being first bent a litt1e by pasing between the first:pair of rollers and the guide D, and being further bent as ib is drawnbetween each succeeding pair 0f rollers and guide, as indi-- cated inFig. 3. 'Ihe roller r, during the operahion, rests first upon fihe topof the tongs, and afterward upon the skelp, aiding t0 hold the Same inposition. The pre ssure of the Toller can be regulated by the position0f the Weight on ehe lever L.

If from any cause a skelp should becorne wedged in the maehine, the twoplates B B and the posts and rollers supported thereon ean be easilydrawn away from each other, as before described, first; loosening t-hescrews C and the bolts i.

When themachine is used for bending skelps without reheating, it; is ofcourse t0 be located so thab the plates or sheets can conveniently passfrom the rolls t0 the machine. We find that by the use of this machinewe are enabled 110 successfully band skelp-withoub -reheating which is agreat saving.

We have nob specifically described theforms of the rollers; but it Willbe observedthat each succeeding pair is adapted to eause Ishe skelp 110be bent more than by he next preceding pair. We have shown five pairs 0fthese rollers; but a greater 01" 1ess number may be used, the form qcauses the t ongs tobeing slight1y cha'nged as required by the change inthe nunnber. All of the rollers are coficave, t he form of t;heconcavity of each pair being changed as shown in the drawings.

' 'Ihe plates B B may be secured 130 the bed A by screws or bolts.

A stop is provided 130 1imit t-he downward moVement of the 1everL.

What: we claim as new, and desire to sec'ure 1 by Letters Patent, is l.In a machine for bending skelp, a series of rollers arranged in pairs,each pair differing from 1she others in form, and adapted 130 acta uponthe ske1p and cause it; t;o bend while being drawn through the maehine,in combination with a guide, D, arranged between the ro11erS, and agrooved r011er, j, pivoted ab lzhe forwardend 0f the guide D,substantially as and for the purposes spec'ified.

3. In a machine for bending skelp, tw0 ad justable plates, B B, eachearrying a series of rollers, formed substantially as shown, the

rollers being arranged in pairs, in combination With a central groovedguide, D, substantially as and for the purposes specified.

4. In a maclfine for bending skelp, the guide E, made in owo parts andsupported 0n adjustable plates B B, in eombination With a se- 4 ries 0frollers arranged in pairs, and aguide, D, substantially as and forthepurposes specified.

v 5. Ina 1nachine for bendii1g skelp, a series of rollers arranged inpairs, a central guide,

D, provided with a groove, k, in combination wibh a pa1'roftongsH,provided wibha lever, p, substantially as and for thepnrposesspecified,

6. In a machine for bending skelp, a series 0f rollers 'of differentforms arranged in pairs, and a guide, D, in combination with apressure-roller, 9', arranged over the guide, substantially as and forhe purpose specified.

7. In a machine for bending. skelp, a series of rollers of differentforms arranged in pairs,

and a neutral guide, D, in combination with a weighted lever L, carryinga. pressure-roller,

'r, arranged over the guide D, substantially as and for t-he purposesspecified.

JOHN H. PIERCE.

VVitnesses:

E. E. BAKER, A. M. HEWLETT.

IIO

WILLIAM B. SANDFORD."

